Type-writing machine.



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TYPE WRITING MACHINE.

APPLICATION FILED APR 30, 1914.

1,1 10,346, Patented Sept. 15, 1914.

3 SHEETS-$8311? 1.

A. RBISSER.

TYPE WRITING MACHINE.

APPLICATION FILED APR,30.1914.

Patented Sept. 15, 1914.

3 sflEETS SHEET 2.

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ATTY

A. REISSER.

TYPE WRITING MACHINE.

APPLICATION FILED APR. 30, 1914.

1,1 10,346. Patented Sept. 15, 1914.

3 SHEETS-SHEET 3.

14 @Figs. lend Ample BIDGL'F REISSER, (3F VIENNA, AUSTRIAJIUNGARY.

'i PE-WRITING MACHINE.

Specification of Letters Patent.

Patented Sept. 15, 1914.

Application filed a n so, 1914. Serial No. 835,399.

To all whom it may concern:

Be it known that I, Amour Rsissse, subject of the Emperor of Anstriwhungery, re siding at Burggasse 10, V enna, II, Austria- .Hungary, have invented certain new and useful Improvements in Type vI riting Machines, of which the following is a spec1fica tion.

The object of the present invention is prevent the tapping noise on the paper in typewriting machines and to reduce the noise of operation to such anextent that it I to he disturbing, without, however, deleteriousiy affecting the lightness of touch, impression and view of the typed matter. this end the mechanism serving to ectuote the type is disposed in an entirely inclosed housing but the type and aper earriers are arranged outside said ousing. The operative connection between the mechanism disposed inside the closed housin and the type carriers outside the latter is effected by a member passing di rectly or indirectly through housing. The tapping noise on the paper is prevented by reducing the long movement of a rotating striking member to a short travel, and then allowing itto actuate the above men;

7 tioned member projecting through the well of the housing.

List-rated in the accomwhich:-

smmetic lon itudinal 3g. 2 a cross section the mashow various i by way of ex iii Fig. l, lie housingof the machine, hey love 11 her arranged transversely underneath the key levers 2,

.har being fixed to the arms 4 end pivpull rod 6 connects one arm A nt 8 rotc ole at 7, with a pinion 9 on the shaft 10, tings I; and 12, is s i. and 2). is mounted: the roller The double armed lever 16, which journi on the shaft and forked'at its up er end. acts on the (in the striking ct, is

1 gudgeon 17 of the rod 18. The rod 18 passes through the closed housing of the machine and is provided with a. cranked part 19, in

which the laminated type cylinder with tion III).

types 20'' are free to move. The shaft 21 0f I the t ypc cylinder projects through the housing 1, the driving and adjusting mechanism of the type carrier being disposed inside the one of the said lever 16. During this period thctype carrier 20 is set. From position II the lever 16 moves in the direction indicated b arrow (1,, and the rod 18 in the direction 0 arrow a, whereby the adjusted, plate of the type cylinder 20 is moved out of the periphery of the letter until the type is impressed, on the platen (roller posis The position II of roller 14 clearly shows that theletter runs tangentially up the lower arm of lever 16,thereby preventing a sudden .impin ement of roller lat-"on the lever 16. As the ey 2 returns to its original position all the parts move in the opposite directions to those indicated by the arrows until they assume their original posirions.

Roller position III shows that the roller at the end of the pressure acts vertically to the center of the lever 16, so that there'is no braking action between the roller and lever.

The release of the pressure after the im-- prcssion thus occurs practically without fric: tionel loss. This is of great importance for at light stroke, as any jamming action has to he overcome by powerful spring action which is associated with a heavy key touch. tapping noise on the paper is avoided bv short distance before making the im res: sion. If this movement were produceii by direct leverage from the key to the type her there would be no time left for the setting of the type cylinder andon the other hand there would he no force for impression. -It is only the proportion of the mass acceleration of the rotating striking member (13) totheleverege of roller (14), increased by 106 the type her only having to move a very the leverage of the arms of the lever 16, which results in the striking member exerting a powerful push at the last part of its movement. A good view of the typed 5 matter is insured by the type carrier and paper carrier being disposed outside the housing, and by the fact that when no type has been operated, the upper edge. of the type cylinder 20 (Fig. 1) isdisposed below the line of writing. The type cylinder is raised and brought into the writing position by the depression of the keys. The shape of the transmitting member 18- which may pass directl or indirectly through the eas- 1ngand w iether said member'passes direct through the housing or indirectly, for instance inside the shaft 21 of the type carrier, immaterial to the invention, as is also the form of striking member 13 adopted, which may be adisk or lever.

Fig. 3 shows a striking'device in which the striking member is a double armed lever 26 which actsjwith a short arm 27 on the bar 28. The lever 26 is actuated by the key through the medium of pull bar 29 and lever 30.

F 4 shows the arrangement between the S riking le er 31 and bar 32 of a bell crank ,lever hereby greater leverage is at- 39 iorded' Fi 5 shows a further modification, in

which the striking, lever is substituted by a disk, and the bell crank by a double armed ever 35. The hereinbefore described as, arrangements have a. .swinging striking j member. Figs. 6 and 7 show an arrangement in which the striking member connatantly rotates in the same direction. The striking lever 37 fixed to the shaft 36 (Fig. as 6) rotates in the direction indicated by the arrow and is provided with a roller 38. 4 The lever 40 pivoted at 39 acts on the bar 41. The shaft 36 is carried by bearings 42, 43 and is moved axially by the key lever 44 45. through the medium of the bell crank 45. 46 is a fixed op. During the rotation (Fig. 6) the lev 37 is able to pass by the stop 46, said lever being pushed sidewise with the shaft 36. As soon-as the impression has been made the shaft 36 is moved in the opposite direction, the roller 38 slides off lever 40 and the lever 37 abuts against the stop 46. (position II of roller 38).

What I claim-as new is 65 1. A typewriting machine with a closed housing, operating mechanism inside the housing and a type carrier and paper carrier outside the housing, and an independent member projecting through the closed hous- 0 ing and as a transmitting member between the operating mechanism inside the closed housing and the type carrier outside.

2. A typewriting machine with a closed housing, a striking member rotatable about 66 an axle inside the housing, a type carrier outside the'housing and a member passing through the closed housing and as a transmitting member between the striking member and type carrier.

3. A typewriting machine with a closed housing, a type carrier outside the housing, and a member projecting through the closed housing and cranked outside, said member serving as a transmitting member between the operating mechanism inside the casing and the type carrier.

4. A typewriting machine with a closed housing, a striking member inside the housing, a transmitting member projecting through the housing, levers in the housing between the striking member and transmitting member, and a type carrier outside the closedhousing. v

5. A typewriting machine with a closed housing, a type carrier outside the housing and operating mechanism inside the housing, an independent member between the operating mechanism and type carrier and projecting through the housing, a striking member in the housingand a pressure lever having arms of unequal length bctween-thestriking member and the member projecting through the housing wall.

6. A typewriting machine with a closed housing, an outside type, carrier, a transmitting member projecting throu h the'housing wall, a rotary striking mem er inside the housing, pressure lever between the striking member and transmitting member, the run- ,ning up point of the rotating striking member on the pressure lever being at a tangent to the are described by the striking member.

7. A typewriting machine with a closed housing, a transm ttingmember projecting through the housing wall, a rotary striking member in the housing, a pressure lever between the rotary striking member and the transmitting member and friction reducing members between the striking member and pressure lever.

8. A typewriting machine with a closed housing, a rotary striking member, toothed gearing for thestriking member, a transmitting member projecting through the hous ing, and levers between the transmitting member and the striking member.

9. A typewriting machine with a closed housing and type carrier outside the housing, openings in the housing for the key le-' vers and for a transmitting member to the type carrier, type levers, and connecting members between the type levers and striking member in the housing in conjunction with levers between said striking member and the transmitting member projecting through the housing.

10. A typewriting machine with a closed housing and type carrier outside the housing, openings in the housing for the key levers and for a transmitting member to the carrier, key levers, and a common cross In testimony whereof I aflix my signature bar underlieathahe key llelweis, arid connectin presence of two witnesses.

' mam rs tween t e ey overs an members inside the housing in con- ADOLF RELSSER junction with levers between the striking Witnesses:

member and the transmitting member pro- RIGHARD KOMSNIK, jecting through the housing wall. Amos-r Fuoonn. 

